Home / 20,746.30-28,628.77-11,792.56

Finding the Fourth Proportional to 20,746.30, 28,628.77 and 11,792.56

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Solution

The fourth proportional to 20,746.30, 28,628.77 and 11,792.56 is: 16,273.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.30 : 28,628.77 = 11,792.56 : x
  2. Step 2: Convert to fraction form
    20,746.30/28,628.77 = 11,792.56/x
  3. Step 3: Cross multiply
    20,746.30x = 28,628.77 × 11,792.56
  4. Step 4: Simplify right side
    20,746.30x = 337,606,487.95
  5. Step 5: Solve for x
    x = 337,606,487.95/20,746.30
  6. Step 6: Final answer
    x = 16,273.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.